WooCommerce Square 4.2.1

* Fix - Inventory tracking logic in the Square product import.
* Tweak - Remove redundant code.
* Dev - Bump WooCommerce "tested up to" version 8.0.
* Dev - Bump WooCommerce minimum supported version to 7.8.
* Dev - Bump WordPress "tested up to" version 6.3.
* Dev - Bump WordPress minimum supported version to 6.1.
* Dev - Update JS docblock to indicate moving away from WooCommerce Checkout Block payment integration to Web Payments SDK.
* Dev - Resolve PHPCS errors.

* Add - Ability to purchase a new gift card.
* Add - Ability to add funds to an existing gift card.
* Add - Capability to refund a Gift Card order.
* Add - Retry mechanism for RATE LIMIT errors.
* Changed: Removed the gift card beta label.
* Dev - Bump WordPress minimum supported version from 5.8 to 6.0.
* Dev - Bump WooCommerce minimum supported version from 6.8 to 7.7.
* Dev - Bump WooCommerce "tested up to" version from 7.8 to 7.9.
* Dev - Bump Square PHP SDK version from 24.0.0.20221116 to 29.0.0.20230720.
* Fix - Allow guest customer to update billing address for manual order if country is not set.
* Fix - Console error when checkout is performed with empty credit card fields.
* Fix - Block Checkout using saved cards.
* Fix - Auto-disconnection issue due to salt rotation.
* Fix - Issue with displaying limited saved payment methods due to posts_per_page setting.

Fix - Renewals failing due to old payment token transient.

• Add – Support for Square Gift Cards as single form of payment on an order.
• Dev – Bump WooCommerce minimum supported version from 6.0 to 6.8.
• Fix – Allow update product inventory in quick edit mode if “Sync Inventory” is disabled.
• Fix – Correct documentation link in the error message when opcache.save_comments is disabled.
• Fix – Issue with Apple Pay domain registration.
• Fix – Issue with sync caused due to incorrect data type.
• Fix – Modified Order Totals wrongly captured in Square with Authorization.
• Fix – Orders are now captured as per the WooCommerce settings to include/exclude the tax amount in prices.
• Fix – Saved card payment issue in block-based checkout.
• Tweak – WC 7.5.0 compatibility.
• Tweak – WP 6.2.0 compatibility.